隐函数求导遇到问题

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巴卡木梨
巴卡木梨 on 24 Apr 2024
Commented: Dyuman Joshi on 24 Apr 2024
syms x y
F=atan(y/x)-log(sqrt(x^2+y^2))
F = 
Fxx=diff(F,x,2)
Fxx = 
Fyy=diff(F,y,2)
Fyy = 
Fxy=diff(diff(F,x),y)
Fxy = 
Fx=diff(F,x)
Fx = 
Fy=diff(F,y)
Fy = 
dydx=-diff(F,x)/diff(F,y)
dydx = 
d2ydx2=-(Fxx*Fy^2+Fyy*Fx^2-2*Fxy*Fx*Fy)/(Fy^3)
d2ydx2 = 
  1 Comment
Dyuman Joshi
Dyuman Joshi on 24 Apr 2024
What exactly is the problem?

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